CN102244395A - Power distribution circuit of UPS (uninterruptible power supply) - Google Patents
Power distribution circuit of UPS (uninterruptible power supply) Download PDFInfo
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- CN102244395A CN102244395A CN2010101671715A CN201010167171A CN102244395A CN 102244395 A CN102244395 A CN 102244395A CN 2010101671715 A CN2010101671715 A CN 2010101671715A CN 201010167171 A CN201010167171 A CN 201010167171A CN 102244395 A CN102244395 A CN 102244395A
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Abstract
The invention relates to a power distribution circuit of a UPS (uninterruptible power supply), comprising a main circuit input part, a by-pass input part and an output part, wherein the main circuit input part is connected between a three-phase four-wire system power supply or a one-phase two-wire system power supply and the UPS and used for providing the input of the three-phase four-wire system power supply or the one-phase two-wire system power supply for the UPS when the UPS works normally; the by-pass input part is connected between the one-phase two-wire system power supply and the UPS and used for providing the input of the one-phase two-wire system power supply for the UPS when the UPS fails or is maintained; and the output part is used for outputting electric energy to a load or a terminal of the UPS. By using the power distribution circuit of the UPS, power can be supplied to the UPS in a three-phase four-wire system mode or a one-phase two-wire system mode, thus meeting the different demands from the different users and ensuring that the load or the terminal of the UPS is prevented from power failure when the UPS fails or is maintained.
Description
Technical field
The present invention relates to power electronic technology, more particularly, relate to the power distribution circuit of a kind of UPS.
Background technology
Along with the raising of industrialized development and various power terminal equipment performance requirements, all trades and professions all will use UPS (Uninterruptible Power Supply, uninterrupted power supply).In the industrial area, most of power supply all is to adopt the mode of three-phase four-wire system to power, therefore the power distribution circuit of employed UPS must adapt to the three-phase four-wire system power supply in the industrial area, and the power distribution circuit of UPS also necessarily requires to guarantee load or the not power down of terminal of UPS in the UPS maintenance simultaneously.And in IT machine room or civilian district, the power supply of the overwhelming majority all is the supply power mode that adopts single-phase two-wire system, so the power distribution circuit of IT machine room or the civilian employed UPS in district must adapt to the single-phase two-wire system power supply.
So, owing to different clients' demand difference, just having caused the power distribution circuit of various UPS, this just presses for the UPS power distribution circuit that finds a kind of the best, makes it can satisfy various demands.
Summary of the invention
The technical problem to be solved in the present invention is, can not satisfy the defective of different customer demands at the power distribution circuit of the above-mentioned UPS of prior art, and the power distribution circuit of a kind of UPS is provided, and comprising:
The main road importation is connected between three-phase four-wire system power supply or single-phase two-wire system power supply and the UPS, is used for providing to UPS when the UPS operate as normal input of three-phase four-wire system power supply or single-phase two-wire system power supply;
The bypass importation is connected between single-phase two-wire system power supply and the UPS, is used for providing to UPS when UPS fault or maintenance the input of single-phase two-wire system power supply;
Output is used for load or terminal output electric energy to UPS.
In the power distribution circuit of UPS of the present invention, also comprise:
The parallel operation part is connected to described output, is used to connect the UPS of two parallel operation.
In the power distribution circuit of UPS of the present invention, described main road importation comprises:
First switch, second switch, the 3rd switch,
The first live wire input, the second live wire input, the 3rd live wire input, zero line input, ground wire input;
Wherein, the described first live wire input inserts the first input end of UPS by described first switch, the described second live wire input inserts second input of UPS by described second switch, described the 3rd live wire input inserts the 3rd input of UPS by described the 3rd switch, described zero line input inserts the four-input terminal of UPS, described ground wire input end grounding;
When UPS was powered by the three-phase four-wire system power supply, the described first live wire input, the described second live wire input, described the 3rd live wire input, described zero line input inserted four ends of three-phase four-wire system power supply respectively;
When UPS is powered by the single-phase two-wire system power supply, the described first live wire input, the described second live wire input and described the 3rd live wire input short circuit, described first live wire input or the described second live wire input or described the 3rd live wire input, and described zero line input inserts two ends of the first single-phase two-wire system power supply respectively.
In the power distribution circuit of UPS of the present invention, described output comprises: live wire output, zero line output, line output terminal, the 4th switch and the 5th switch, wherein, the live wire output inserts first output of UPS by the 4th switch, the zero line output is by second output of the 5th switch access UPS, ground wire output head grounding.
In the power distribution circuit of UPS of the present invention, described bypass importation comprises:
Bypass live wire input, bypass zero line input, bypass ground wire input, the 6th switch, minion are closed and octavo is closed, described bypass live wire input connects described live wire output by described the 6th switch, described the 4th switch successively, described bypass live wire input also closes by minion and connects described live wire output, and described bypass zero line input also closes by described octavo and connects described zero line output.
In the power distribution circuit of UPS of the present invention, described bypass live wire input connects the live wire end of the second single-phase two-wire system power supply, makes not homology of described main road importation and described bypass importation.
In the power distribution circuit of UPS of the present invention, the main road importation also comprises the one one live wire input that links to each other with the described first live wire input, described the one one live wire input and described bypass live wire input short circuit make described main road importation and described bypass importation homology.
In the power distribution circuit of UPS of the present invention, described parallel operation partly comprises:
The first parallel operation end and the second parallel operation end, the described first parallel operation end connects described live wire output, and the described second parallel operation end connects the zero line output.
In the power distribution circuit of UPS of the present invention, described first switch, described second switch, described the 3rd switch, described the 4th switch, described the 5th switch, described the 6th switch, described minion are closed, described octavo is closed and is respectively first relay switch, second relay switch, the 3rd relay switch, the 4th relay switch, the 5th relay switch, the 6th relay switch, the 7th relay switch, the 8th relay switch.
In the power distribution circuit of UPS of the present invention, described first switch (K1), described second switch (K2), described the 3rd switch (K3), described the 4th switch (K4), described the 5th switch (K5), described the 6th switch (K6) are normally closed switch; Described minion closes (K7) and described octavo pass (K8) is a normal open switch.
The UPS power distribution circuit of the embodiment of the invention, comprise the main road importation, the input of three-phase four-wire system power supply or single-phase two-wire system power supply is provided to UPS when can be implemented in the UPS operate as normal, make UPS both be fit to the supply power mode of three-phase four-wire system, be fit to the supply power mode of single-phase two-wire system again, satisfied different different requirements of customers.Simultaneously,, provide the input of single-phase two-wire system power supply when can be implemented in UPS fault or maintenance to UPS, guaranteed when UPS fault or maintenance, can not cause the power down of UPS load or terminal because this power distribution circuit comprises the bypass importation.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the logic diagram of UPS power distribution circuit embodiment one of the present invention;
Fig. 2 is the logic diagram of UPS power distribution circuit embodiment two of the present invention;
Fig. 3 is the circuit diagram of UPS power distribution circuit embodiment three of the present invention.
Embodiment
As shown in Figure 1, in the logic diagram of UPS power distribution circuit embodiment one of the present invention, this UPS power distribution circuit comprises: main road importation 100, bypass importation 200 and output 300, wherein, main road importation 100, be connected between three-phase four-wire system power supply or single-phase two-wire system power supply and the UPS, be used for when the UPS operate as normal, providing the input of three-phase four-wire system power supply or single-phase two-wire system power supply to UPS; Bypass importation 200 is connected between single-phase two-wire system power supply and the UPS, is used for providing to UPS when UPS fault or maintenance the input of single-phase two-wire system power supply; Output 300 is used for to the load of UPS or terminal output electric energy.Implement the technical scheme of present embodiment, make UPS both be fit to the supply power mode of three-phase four-wire system, be fit to the supply power mode of single-phase two-wire system again, satisfied different different requirements of customers, guaranteed when UPS fault or maintenance, can not cause the power down of UPS load or terminal simultaneously again.
As shown in Figure 2, in the logic diagram of UPS power distribution circuit embodiment two of the present invention, this UPS power distribution circuit comprises: main road importation 100, bypass importation 200, output 300 and parallel operation part 400, wherein, main road importation 100 among this embodiment, main road importation 100 among bypass importation 200 and output 300 and the embodiment one, bypass importation 200 is identical with output 300, do not do at this and to give unnecessary details, parallel operation part 400 only is described below, parallel operation part 400 is connected to output 300, be used to connect the UPS of two parallel operation, realize the redundancy of UPS, even therefore can guarantee that one of them UPS fault also can not influence the power supply of load or terminal.
As shown in Figure 3, in the circuit diagram of UPS power distribution circuit embodiment three of the present invention, this power distribution circuit comprises main road importation 100, bypass importation 200, output 300 and parallel operation part 400,
Wherein, main road importation 100 comprises first K switch 1, second switch K2, the 3rd K switch 3, the first live wire input L1, the one one live wire input L1 ', the second live wire input L2, the 3rd live wire input L3, zero line input N1, the ground wire input (not shown) that link to each other with the first live wire input L1.And, the first live wire input L1 inserts the first input end of UPS by first K switch 1, the second live wire input L2 inserts second input of UPS by second switch K2, the 3rd live wire input L3 inserts the 3rd input of UPS by the 3rd K switch 3, zero line input N1 inserts the four-input terminal of UPS, ground wire input end grounding.
Preferably, above-mentioned first K switch 1, second switch K2, the 3rd K switch 3, the 4th K switch 4, the 5th K switch 5, the 6th K switch 6, minion are closed K7, octavo is closed K8 and all can be adopted relay switch.
Preferably, first K switch 1, second switch K2, the 3rd K switch 3, the 4th K switch 4, the 5th K switch 5, the 6th K switch 6 are normally closed switch, and minion closes K7 and octavo pass K8 is a normal open switch.
In above-mentioned UPS power distribution circuit, the UPS operate as normal can have the powering mode of following two kinds of power supplys: if UPS is powered by the three-phase four-wire system power supply, then the first live wire input L1, the second live wire input L2, the 3rd live wire input L3, zero line input N1 insert four ends of three-phase four-wire system power supply respectively, have so just realized the powering mode of three-phase four-wire system power supply; If UPS is powered by the single-phase two-wire system power supply, the then first live wire input L1, the second live wire input L2 and the 3rd live wire input L3 short circuit, the first live wire input L1 or the second live wire input L2 or the 3rd live wire input L3, reach two ends that zero line input N1 inserts the single-phase two-wire system power supply respectively, so just realized the powering mode of single-phase two-wire system power supply.
In above-mentioned UPS power distribution circuit, if UPS breaks down, then UPS switches to bypass importation 200 with main road importation 100 automatically, load or terminal continuation power supply for UPS, have two kinds of patterns: a kind of is main other different source modules, and the live wire that is about to other power supply inserts bypass live wire input By; A kind of is main other same source module, is about to the one one live wire input L1 ' and gets up with bypass live wire input By short circuit.
In above-mentioned UPS power distribution circuit, if when UPS will keep in repair, at first first K switch 1, second switch K2, the 3rd K switch 3, the 4th K switch 4, the 5th K switch 5, the 6th K switch 6 are disconnected respectively, then the two ends of a power supply are inserted bypass live wire input By and bypass zero line input N3 respectively, and closed minion is closed K7 and octavo is closed K8, like this, UPS is inner just not to have civil power, thereby can not cause unexpected injury to the maintainer.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present invention.
Claims (10)
1. the power distribution circuit of a UPS is characterized in that, comprising:
The main road importation is connected between three-phase four-wire system power supply or single-phase two-wire system power supply and the UPS, is used for providing to UPS when the UPS operate as normal input of three-phase four-wire system power supply or single-phase two-wire system power supply;
The bypass importation is connected between single-phase two-wire system power supply and the UPS, is used for providing to UPS when UPS fault or maintenance the input of single-phase two-wire system power supply;
Output is used for load or terminal output electric energy to UPS.
2. the power distribution circuit of UPS according to claim 1 is characterized in that, also comprises:
The parallel operation part is connected to described output, is used to connect the UPS of two parallel operation.
3. the power distribution circuit of UPS according to claim 2 is characterized in that, described main road importation comprises:
First switch (K1), second switch (K2), the 3rd switch (K 3),
The first live wire input (L1), the second live wire input (L2), the 3rd live wire input (L3), zero line input (N1), ground wire input;
Wherein, the described first live wire input (L1) inserts the first input end of UPS by described first switch (K1), the described second live wire input (L2) inserts second input of UPS by described second switch (K2), described the 3rd live wire input (L3) inserts the 3rd input of UPS by described the 3rd switch (K3), described zero line input (N1) inserts the four-input terminal of UPS, described ground wire input end grounding;
When UPS was powered by the three-phase four-wire system power supply, the described first live wire input (L1), the described second live wire input (L2), described the 3rd live wire input (L3), described zero line input (N1) inserted four ends of three-phase four-wire system power supply respectively;
When UPS is powered by the single-phase two-wire system power supply, the described first live wire input (L1), the described second live wire input (L2) and described the 3rd live wire input (L3) short circuit, described first live wire input (L1) or the described second live wire input (L2) or described the 3rd live wire input (L3), and described zero line input (N1) inserts two ends of the first single-phase two-wire system power supply respectively.
4. the power distribution circuit of UPS according to claim 3 is characterized in that, described output comprises: live wire output (L), zero line output (N2), line output terminal, the 4th switch (K4) and the 5th switch (K5),
Wherein, live wire output (L) is by first output of the 4th switch (K4) access UPS, and zero line output (N2) is by second output of the 5th switch (K5) access UPS, ground wire output head grounding.
5. the power distribution circuit of UPS according to claim 4 is characterized in that, described bypass importation comprises:
Bypass live wire input (By), bypass zero line input (N3), bypass ground wire input, the 6th switch (K6), minion close (K7) and octavo is closed (K8),
Described bypass live wire input (By) connects described live wire output (L) by described the 6th switch (K6), described the 4th switch (K4) successively, described bypass live wire input (By) also closes (K7) by minion and connects described live wire output (L), and described bypass zero line input (N3) also closes (K8) by described octavo and connects described zero line output (N2).
6. the power distribution circuit of UPS according to claim 5 is characterized in that, described bypass live wire input (By) connects the live wire end of the second single-phase two-wire system power supply, makes not homology of described main road importation and described bypass importation.
7. the power distribution circuit of UPS according to claim 5, it is characterized in that, described main road importation also comprises the one one live wire input (L1 ') that links to each other with the described first live wire input (L1), described the one one live wire input (L1 ') and described bypass live wire input (By) short circuit make described main road importation and described bypass importation homology.
8. according to the power distribution circuit of each described UPS of claim 4-7, it is characterized in that described parallel operation partly comprises:
The first parallel operation end (S1) and the second parallel operation end (S2), the described first parallel operation end (S1) connects described live wire output (L), and the described second parallel operation end (S2) connects zero line output (N2).
9. the power distribution circuit of UPS according to claim 5, it is characterized in that described first switch (K1), described second switch (K2), described the 3rd switch (K3), described the 4th switch (K4), described the 5th switch (K5), described the 6th switch (K6), described minion are closed (K7), described octavo is closed (K8) and is relay switch.
10. according to the power distribution circuit of claim 5 or 9 described UPS, it is characterized in that described first switch (K1), described second switch (K2), described the 3rd switch (K3), described the 4th switch (K4), described the 5th switch (K5), described the 6th switch (K6) are normally closed switch; Described minion closes (K7) and described octavo pass (K8) is a normal open switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010167171 CN102244395B (en) | 2010-05-10 | 2010-05-10 | Power distribution circuit of UPS (uninterruptible power supply) |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010167171 CN102244395B (en) | 2010-05-10 | 2010-05-10 | Power distribution circuit of UPS (uninterruptible power supply) |
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| CN102244395A true CN102244395A (en) | 2011-11-16 |
| CN102244395B CN102244395B (en) | 2013-12-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633729A (en) * | 2013-01-23 | 2014-03-12 | 世源科技工程有限公司 | Distribution system for machine room of data center |
| CN104037749A (en) * | 2013-03-04 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | AC power supply control system |
| CN105827008A (en) * | 2015-01-06 | 2016-08-03 | 台达电子工业股份有限公司 | Power supply bypass device and power supply transmission device |
| CN108429255A (en) * | 2018-03-21 | 2018-08-21 | 南京钢铁股份有限公司 | PLC system is for electric installation |
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| CN1901316A (en) * | 2005-07-23 | 2007-01-24 | 熊晓强 | Converter for changing three phase power into single phase power |
| CN101136557A (en) * | 2006-09-01 | 2008-03-05 | 力博特公司 | Uninterrupted power supply and its configuration method |
| CN101222145A (en) * | 2007-01-11 | 2008-07-16 | 宝山钢铁股份有限公司 | Device and method for on-line switching uninterrupted power supply |
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2010
- 2010-05-10 CN CN 201010167171 patent/CN102244395B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901316A (en) * | 2005-07-23 | 2007-01-24 | 熊晓强 | Converter for changing three phase power into single phase power |
| CN101136557A (en) * | 2006-09-01 | 2008-03-05 | 力博特公司 | Uninterrupted power supply and its configuration method |
| CN101222145A (en) * | 2007-01-11 | 2008-07-16 | 宝山钢铁股份有限公司 | Device and method for on-line switching uninterrupted power supply |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633729A (en) * | 2013-01-23 | 2014-03-12 | 世源科技工程有限公司 | Distribution system for machine room of data center |
| CN104037749A (en) * | 2013-03-04 | 2014-09-10 | 深圳市大族激光科技股份有限公司 | AC power supply control system |
| CN104037749B (en) * | 2013-03-04 | 2017-04-12 | 大族激光科技产业集团股份有限公司 | AC power supply control system |
| CN105827008A (en) * | 2015-01-06 | 2016-08-03 | 台达电子工业股份有限公司 | Power supply bypass device and power supply transmission device |
| CN108429255A (en) * | 2018-03-21 | 2018-08-21 | 南京钢铁股份有限公司 | PLC system is for electric installation |
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| CN102244395B (en) | 2013-12-18 |
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Address after: Columbo Road, Ohio, Dearborn 1050 Patentee after: Vitamin Corporation Address before: Columbo Road, Ohio, Dearborn 1050 Patentee before: Libot Inc. |